Add an ear to your project with this well-designed electret microphone amplifier. This fully assembled and tested board comes with a 20-20KHz electret microphone soldered on.

This breakout is best used for projects such as voice changers, audio recording/sampling, and audio-reactive projects that use FFT. On the back, we include a small trimmer pot to adjust the gain.

Using it is simple: connect GND to ground, VCC to 2.4-5VDC.

The output pin is not designed to drive speakers or anything but the smallest in-ear headphones - you'll need an audio amplifier (such as our 3.7W stereo amp) if you want to connect the amp directly to speakers.

Specification:

For the amplification, we use the Maxim MAX4466, an op-amp specifically designed for this delicate task! The amplifier has excellent power supply noise rejection, so this amplifier sounds really good and isn't nearly as noisy or scratchy as other mic amp breakouts we've tried!

You can set the gain from 25x to 125x. That's down to be about 200mVpp (for normal speaking volume about 6" away) which is good for attaching to something that expects 'line level' input without clipping, or up to about 1Vpp, ideal for reading from a microcontroller ADC. The output is rail-to-rail so if the sounds gets loud, the output can go up to 5Vpp!

For the best performance, use the "quietest" supply available (on an Arduino, this would be the 3.3V supply). The audio waveform will come out of the OUT pin. The output will have a DC bias of VCC/2 so when its perfectly quiet, the voltage will be a steady VCC/2 volts (it is DC coupled). If the audio equipment you're using requires AC coupled audio, place a 100uF capacitor between the output pin and the input of your device. If you're connecting to an audio amplifier that has differential inputs or includes decoupling capacitors, the 100uF cap is not required.

You can return this product for a refund/replacement, within 7 days after receiving your original order ONLY if you have received the wrong product (with seal not broken) or does not turn on.

If you change your mind after placing the order, a return will be allowed if sent back with the rider during the time of delivery (return on the spot) with seal not broken (if any).

Ensure you notify Jumia of any product malfunction within 7 days from delivery, Jumia will pick up the defective item and have it repaired by our partners within 24 days.

If the product is "shipped from Overseas"?

You can return this product ONLY if you have received the wrong product or if the item has been damaged.
You cannot return the product if you change your mind or you don't like the product.
For more information, please visit our FAQ on "Shipped from Overseas products"

- product must remain sealed, except if the product is defective or damaged

- product is still in its original packaging, except if the product is damaged or has missing parts

- product is in its original condition and unused

- product is not damaged except if the product is defective

- product label is still attached except if this is the reason for the return

- product is complete (freebies, accessories, original packaging), except if it has missing parts

- product's original packaging is in good condition

Please NOTE that the products in your possession are your responsibility until they are picked up by our driver or you have dropped them off at a pickup Station. Any product that is not properly packed or is damaged will not be eligible for a return, so please take proper care of the products you might want to return!

What are the next steps?

Once you have submitted your return request, we will contact you within 48 hours to arrange retrieval. You will also have the choice to deliver yourself the product to one of our pickup Stations.

Once the product retrieved, we will proceed to examination.

- In the unlikely event that an item is returned to us in an unsuitable condition, we will send it back to you without refund.

- If examination conclusive and conditions above respected, we will proceed to refund your money or replace the product.

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